U.S. sprinter Tyson Gay is returning close to $500,000 in appearance fees and prize money from six meets in which he competed since he began taking a banned anabolic steroid on July 15, 2012, according to the Telegraph.

Gay, the joint second fastest man of all time in the 100m, failed three drug tests last year and hasn’t competed since admitting to one of them on July 14. He was given a one-year suspension by the U.S. Anti-Doping Agency, backdated to June 23, when he could have received a two-year ban. USADA said he was given a reduced suspension for “providing substantial assistance” to the agency.

Gay is paying money back to five Diamond League meets and one meet in Jamaica, according to the newspaper. One of them is the 2012 Birmingham Grand Prix in Great Britain, where Gay finished second in a 200m race two weeks after the Olympics.

“I can confirm the [Birmingham] money is already on its way back from Gay’s agent,” British Athletics chairman Ed Warner told the newspaper. “They are aware their contract said the money was returnable if there was a doping violation, but [Gay’s agent] Mark Wetmore was on the case before we got on to it.”